Lightbulb holder



FIG. 1 is a front/side/top perspective view of a lightbulb holder illustrating the design.

FIG. 2 is a front elevation view of the lightbulb holder in FIG. 1.

FIG. 3 is a rear elevation view of the lightbulb holder in FIG. 1.

FIG. 4 is a side elevation view (other side is a mirror image) of the lightbulb holder in FIG. 1.

FIG. 5 is a top plan view of the lightbulb holder in FIG. 1; and,

FIG. 6 is a bottom plan view of the lightbulb holder in FIG. 1.

The broken line showing of the bulb portion is included for the purpose of illustrating only and forms no part of the claimed design. 

CLAIM The ornamental design for a lightbulb holder, as shown and described. 